Differences in Ability Factor Profiles between Mongoloid and Nonmongoloid Retarded Subjects in Discriminant Analysis and After Covariance Adjustments.

Risto, Kaariainen

Investigated were psychological differences between 24 mongoloid and 56 nonmongoloid retarded Ss (mean age 17 years) by means of analyses of covariance and a discriminant analysis. After the covariance adjustments, only the psychomotor factor differed significantly between mongoloid and nonmongoloid groups. The visual perception factor was the only mongoloid ability with a higher mean value than the same ability in nonmongoloids. (DB)